High-Temperature Motor Windings for Downhole Pumps Used in Geothermal Energy Production

Hooker, Matthew ; Hazelton, Craig ; Kano, Kimi

关键词: BREAKDOWN;    COMPOSITE MATERIALS;    DIELECTRIC MATERIALS;    GEOTHERMAL ENERGY;    GEOTHERMAL SYSTEMS;    LIFETIME;    MOTORS;    PERFORMANCE;    PRODUCTION;    THERMOPLASTICS electrical insulation;    composite insulation;    electric submer;   

DOI  :  10.2172/1011754
RP-ID  :  DOE/GO/18183-1
PID  :  OSTI ID: 1011754
Others  :  Other: 7222
Others  :  TRN: US201111%%701

美国|英语

来源: SciTech Connect

【 摘 要 】

The development of highly reliable downhole equipment is an essential element in enabling the widespread utilization of Enhanced Geothermal Systems (EGS). The downhole equipment used in these systems will be required to operate at high voltages and temperatures on the order of 200 to 250?��C (and eventually to 300?��C). These conditions exceed the practical operating ranges of currently available thermoplastic wire insulations, and thus limit the operating lifetime of tools such as Electric Submersible Pumps (ESPs). In this work, high-temperature insulations based on composite materials were developed and demonstrated. The products of this work were found to exhibit electrical resistivities and dielectric breakdown strengths that PEEK at temperatures above 250C. In addition, sub-scale motor windings were fabricated and tested to validate the performance of this technology